Electrical current transducer

Fluxgate based current transducer for measuring a primary current comprising a fluxgate magnetic field detector, a measuring circuit, and a signal output processing unit, the fluxgate magnetic field detector including an excitation coil driven by an oscillating excitation current (Ifluxgate) supplied by the measuring circuit, wherein the measuring circuit is configured to provide at least two different measurement signals of the primary current (IP), including a first measurement signal obtained through a first measurement signal path and a second measurement signal obtained through a second measurement signal path, the first and second measurement signal paths connected to the signal processing unit configured to compare in real time the first and second measurement signals and to output an error signal if the difference between said first and second measurement signals exceeds a predefined tolerance value.